A circular coil of radius 5 picm having atotal of the magnetic meridian plane (i.e. thevertical plane in thenorth-south direction) . It is rotated about itsverticaldiameter by 45^(@)and a currentof sqrt(2A) is passed through it. A magnetic needle placed at thecentre of this coil points west toeast. The horizontalcopmonent of the earth'smagnetic field is

A circular coil of radius 5 picm having atotal of the magnetic meridia

1.	A circular coil of radius 5 picm having atotal of the magnetic meridian plane (i.e. thevertical plane in thenorth-south direction) . It is rotated about itsverticaldiameter by 45^(@)and a currentof sqrt(2A) is passed through it. A magnetic needle placed at thecentre of this coil points west toeast. The horizontalcopmonent of the earth'smagnetic field is
Answer» `20 xx 10^(-5)T` `4 xx 10^(-5)T` `4 xx 10^(-7)T` `(4)/(PI) xx 10^(-5)T` ANSWER :B